Social aspects of RE are not limited to low income tenants, far from it.Look too, for the National Association of Housing Officials and Redevelopment (NAHRO).Here are some organizations or other folks that deal in RE within their realm.Office of AgingAssisted LivingAdvocate Organizations for the blind, handicap, children, etc.City P&Z OfficesDept. of Defense, especially the Corps Of EngineersDept. of EducationDept. of Health and Human ServicesEconomic Development identifies blighted areas and funds redevelopment.HUD/USDA have social and economic skills educationHOA organizationsLook to your local United Way, they are often the gatekeepers for funding going to community service organizations and they will know non-profit housing entities that serve an area.Developers base growth from social impact studies, demographics are the social and economic movement of populations.  

Inventory was fairly low and it was a decent deal, so we weren't surprised to hear there was another interested party (not sure if they'd made an official offer yet). 

After sitting in on some meetings with county officials and bank execs in my area, I have found out there is an extremely high foreclosure rate here.

A nice benefit in AZ is that if the owner pays the taxes after the 30 day notice but before the foreclosure reaches the deadline, then the owner has to pay all the attorney fees for the lien holder who started the foreclosure.I suggest a Google search of "Arizona Tax Lien Statutes" will bring you to the page with the official laws related to Arizona.

I inherited two tenants that were on MTM leases as they at one point in time were on official leases.  

Predictably, the mother and girlfriend moved out after 2 months, and I found out that only the official Section 8 lease was valid.

If not, then what is the official name of it?

Lucky me, I am an official renter in one of my dad's self managed apartment units.

My understanding is: So long as it's not recorded as an official MORTGAGE against that property.

I believe you are talking about writing for the official BiggerPockets blog, which does have more stringent requirements.I'll share this thread with our Blog Editor.